Plas Celyn is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 20 June 1995. House.
Plas Celyn
- WRENN ID
- cold-plinth-grain
- Grade
- II
- Local Planning Authority
- Brecon Beacons National Park
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 20 June 1995
- Type
- House
- Address
- Plas Celyn, Ffordd-Las, Llanigon, Powys
- OS grid reference
- SO 215 391
- Coordinates
- 52.04536, -3.1458
- Source
- Cadw listing
Description
Plas Celyn is a two-storey building with a cellar and attics, constructed of stone, with the south gable end rendered. The east front is approximately symmetrical, featuring chimneys at the front corners. It has later brick sash windows that have been fitted with PVC frames, along with a wooden porch, a front door made up of three by three shaped panels, and dormer windows, all dating from after 1900 and displaying a bold gothic character. There is a blocked original window to the right of the porch, and the original chimney at the rear is rendered. The roof is covered with slate and adorned with terracotta crests and finials, also from after 1900. The rear wing is made of stone with an asbestos slate roof, is one storey high with attics, and features PVC windows.
The front range has an interesting plan related to the P Smith type A, and retains some original four and six fielded-panel oak doors. Inside, there is a hall with stone paving and an original oak staircase leading to the attics, featuring turned balusters and a ramped handrail. The late 19th-century marble chimneypieces add to the interior's character. The cellar beneath the parlour has a cobbled floor. The parlour itself is dado panelled with 17th-century oak wainscot, with the panels and framing mostly chip-carved in more than one pattern. There are additional wainscot panels on doors with stained glass in a blocked window and the porch. The first floor retains original two and four-panelled doors, with an 18th-century plan that includes a southern half accessed through a round wooden arch leading to a block of rooms. The attics have plank doors, while the rear wing features 19th-century and later additions.
Local climate
Plas Celyn sits in a wetter-than-average part of the UK, with an average of 960 mm of rain a year. This makes it wetter than 75% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 61% of listed buildings.
It experiences an average of 50 freeze-thaw cycles a year, more than 91% of listed buildings. Of these, 27 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.
Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.
More on this building
Sign in or create a free account to unlock:
- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- Detailed attributes — period, style, materials, features
- Flood risk assessment
- Radon risk assessment
- Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
Similar buildings
The closest matches to this building from all 493,000 UK listed buildings, by architecture, period and materials.
this building 1 similar nearby listed buildings